Breath deep
More air in means more oxygen in the blood and therefore in the brain. Breath through your nose and you'll notice that you use your diaphragm more, drawing air deeper into your lungs. Several deep breaths can also help to relax you, which is conducive to clearer thinking.More air in means more oxygen in the blood and therefore in the brain. Breath through your nose and you'll notice that you use your diaphragm more, drawing air deeper into your lungs. Several deep breaths can also help to relax you, which is conducive to clearer thinking.